Transparent or translucent resin composition

ABSTRACT

There is provided a transparent or semitransparent resin composition which can be easily cut.  
     The resin composition can be obtained by mixing a methacrylic resin with an ethylene•vinyl acetate copolymer resin, polybutene-1, polypropylene resin, ionomer and low-density polyethylene in a specific ratio.

DETAILED DESCRIPTION OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a transparent or semitransparentresin composition and molded articles thereof. More specifically, itrelates to a transparent or semitransparent resin composition which issuitable for use as molded articles to be cut with cutlery when in useand which can be cut with cutlery, and to the molded articles.

[0003] 2. Prior Art

[0004] There has been need for the development of plastic materialswhich can be easily cut with cutlery, like wooden materials. The needhas partially been met by techniques such as one in which a plastic isfoamed and one in which a large amount of inorganic or organic powders(such as calcium carbonate powders, woodflour, talc powders, etc.) arecontained in the plastic. However, all the materials obtained by any ofthe above techniques are not transparent. A technology for producingplastic molded articles which are transparent and can be cut withcutlery has not been existent.

[0005] Meanwhile, there has recently been seen a tendency towardpreference of transparent or semitransparent general consumer goods suchas personal computers, timepieces, stationery and AV products whoseinterior parts can be seen from outside. They are generally called“skeleton products”. What must be easily cut with cutlery when in use,such as the casings of pencils (particularly color pencils) and penciltype cosmetics, are now desired to be transparent or semitransparent.

[0006] Problems the Invention Intend to Solve

[0007] It is therefore an object of the present invention to provide anovel resin composition which is transparent or semitransparent and canbe easily cut with cutlery.

[0008] It is another object of the present invention to provide a resincomposition which is transparent or semitransparent so that it can beused as molded articles such as the casings of color pencils and penciltype cosmetics and which can be easily cut with cutlery.

[0009] It is still another object of the present invention to provide atransparent or semitransparent molded article which is made from theabove resin composition of the present invention and can be cut withcutlery.

[0010] Other objects and advantages of the present invention will becomeapparent from the following description.

[0011] Means for Solving the Problem

[0012] According to the present invention, firstly, the above objectsand advantages of the present invention are attained by a transparent orsemitransparent resin composition which comprises (A) 100 parts byweight of a methacrylic resin and (B1) 3 to 100 parts by weight of atleast one polymer selected from the group consisting of anethylene•vinyl acetate copolymer resin and polybutene-1 (may be referredto as “first composition of the present invention” hereinafter).

[0013] Secondly, the above objects and advantages of the presentinvention are attained by a transparent or semitransparent resincomposition which comprises (A) 100 parts by weight of a methacrylicresin and (B2) 30 to 300 parts by weight of at least one polymerselected from the group consisting of a polypropylene resin, an ionomerand a low-density polyethylene (may be referred to as “secondcomposition of the present invention” hereinafter).

[0014] Thirdly, the above objects and advantages of the presentinvention are attained by a transparent or semitransparent resincomposition which comprises (A) 100 parts by weight of a methacrylicresin, (B1) 3 to 100 parts by weight of at least one polymer selectedfrom the group consisting of an ethylene•vinyl acetate copolymer resinand polybutene-1 and (B2) 30 to 300 parts by weight of at least onepolymer selected from the group consisting of a polypropylene resin, anionomer and a low-density polyethylene.

[0015] Finally, the above objects and advantages of the presentinvention are attained by molded articles made from the above resincompositions of the present invention, which are transparent orsemitransparent and can be cut with cutlery.

[0016] The resin composition of the present invention is extremelyuseful as a raw material for the production of molded articles which aretransparent or semitransparent and can be cut with cutlery.

[0017] Practical Embodiment of the Invention

[0018] The methacrylic resin used in the present invention is preferablya methacrylic resin itself which is transparent. The methacrylic resincontains a recurring unit derived from methyl methacrylate preferably inan amount of 80 mol % or more based on the total of all the recurringunits. The methacrylic resin preferably has a weight average molecularweight of 60,000 to 100,000. The methacrylic resin preferably hastransparency with a light transmission, measured in accordance with ASTMD 1003, of 92% or more. The methacrylic resin used in the presentinvention can be acquired as commercially available products such asDelpet 60N (of Asahi Kasei Kogyo KK.) and Acrypet MD (of MitsubishiRayon Co., Ltd.).

[0019] The ethylene•vinyl acetate copolymer resin used in the firstcomposition and the third composition of the present invention ispreferably an ethylene•vinyl acetate copolymer resin itself which istransparent. The ethylene•vinyl acetate copolymer resin comprises arecurring unit derived from vinyl acetate in an amount of preferably 2to 35 wt %, more preferably 15 to 20 wt % based on the total of all therecurring units. The ethylene•vinyl acetate copolymer resin ispreferably produced by a high-pressure process and has a weight averagemolecular weight of several ten thousands to several hundred thousands.The ethylene•vinyl acetate copolymer resin has transparency with a lighttransmission, measured in accordance with ASTM D 1003, of preferably 20%or more, more preferably 30% or more.

[0020] The ethylene•vinyl acetate copolymer resin can be acquired ascommercially available products such as Evaflex (of Du Pont-MitsuiPolychemicals Co., Ltd.) and Novatec EVA (of Japan Polychem Corp.).

[0021] Similarly, the polybutene-1 used in the first composition and thethird composition of the present invention is preferably poybutene-1itself which is transparent. The polybutene-1 is preferably a polymerobtained by polymerizing high-purity butene-1 in the presence of aZiegler catalyst.

[0022] The polybutene-1 can be acquired as commercially availableproducts such as Tafmer (of Mitsui Chemicals, Inc.).

[0023] The ethylene•vinyl acetate copolymer resin and polybutene-1 maybe used alone or in combination.

[0024] The resin and/or polymer are/is used in a total amount of 3 to100 parts by weight based on 100 parts by weight of the methacrylicresin.

[0025] Below 3 parts by weight, the obtained composition has very hightransparency but unsatisfactory cuttability. Above 10 parts by weight,the obtained composition is satisfactory in terms of transparency andcuttability but the strength, specifically elastic modulus of its moldedarticle becomes low with the result that it cannot be used as the casingof a pencil because it is easily bent by pressure when writingtherewith.

[0026] The total amount of the resin and/or polymer is preferably 5 to90 parts by weight based on the same standard as above.

[0027] The polypropylene resin used in the second composition and thethird composition of the present invention is preferably a polypropyleneresin itself which is transparent or semitransparent. The polypropyleneresin is preferably a random copolymer of propylene and ethylene or anα-olefin having 4 or 5 carbon atoms. The amount of ethylene or α-olefinhaving 4 or 5 carbon atoms copolymerized is preferably 0.5 to 5 mol %based on the total of all the recurring units.

[0028] As the transparent or semitransparent polypropylene resin ispreferably used what contains a nucleating agent or clarifier becausetransparency or semitransparency is easily obtained due to the formedmicrocrystals. The polypropylene resin can be acquired as commerciallyavailable products such as Novatec PP MG03B (of Japan Polychem Corp.)and Grand Polypro J226E (of Grand Polymer Co., Ltd.).

[0029] The transparent or semitransparent polypropylene resin in thepresent invention is a polypropylene resin which gives a 2 mm-thickplate having a haze value of 30% or less.

[0030] Similarly, the ionomer used in the second composition and thethird composition is preferably an ionomer itself which is transparentor semitransparent. As the ionomer is preferably used those obtained bycrosslinking copolymers of ethylene and acrylic acid or methacrylic acideach other in the presence of a metal ion such as Zn, Na, Ba or Ca. Theamount of the acrylic acid or methacrylic acid copolymerized ispreferably 5 to 20 mol % based on the total of all the recurring units.

[0031] The ionomer can be acquired as commercially available productssuch as Himilan (of Du Pont-Mitsui Polychemicals Co., Ltd.).

[0032] The transparent or semitransparent ionomer in the presentinvention is an ionomer which gives a 1 mm-thick plate having a hazevalue of 6% or less in accordance with JIS K-7105.

[0033] Similarly, the low-density polyethylene used in the secondcomposition and the third composition generally has a melting point of98 to 115° C. and a melt flow rate (ASTM D 1238) of 0.25 to 27 g/10 min,and is produced by a high-pressure process.

[0034] The polypropylene resin, ionomer and low-density polyethylene maybe used alone or in combination. These polymer components are used in atotal amount of 30 to 300 parts by weight based on 100 parts by weightof the acrylic resin. Below 30 parts by weight, the obtained compositionis satisfactory in terms of transparency but unsatisfactory in terms ofcuttability, while above 300 parts by weight, the obtained compositionis unsatisfactory in terms of both transparency and cuttability.

[0035] The total amount of the polymer components is preferably 35 to200 parts by weight based on the same standard as above.

[0036] The third composition of the present invention comprises acombination of the ethylene•vinyl acetate copolymer resin and/orpolybutene-1 (B1) used in the first composition and the polymercomponents (B2) used in the second composition.

[0037] It can be said that the first composition of the presentinvention has an extremely high level of transparency close to that ofthe methacrylic resin alone. Therefore, the first composition isadvantageously used for applications which require extremely hightransparency and cuttability.

[0038] Meanwhile, as the second composition of the present inventionshows semitransparency nearly equivalent to a transparent polypropyleneresin and a transparent ABS resin, it can be advantageously used forapplications which require a high-grade impression due to lowtransparency.

[0039] The third composition of the present invention has anintermediate level of transparency between the transparency of the abovefirst composition and the transparency of the second composition, thatis, slightly restrained transparency and excellent cuttability. Anexample of the third composition is a blend of 50 parts by weight of anethylene•vinyl acetate copolymer resin and 50 parts by weight of atransparent polypropylene resin with 100 parts by weight of amethacrylic resin.

[0040] Since a blend of a methacrylic resin and other five resins haskind of additivity as described above, resins to be blended are selectedaccording to application purpose, design or the taste of a customer toadjust the level of transparency from a perfect level to an intermediatelevel.

[0041] The present inventors have studied how to further improve theappearance and cuttability of molded articles and flowability at thetime of molding by a trial and error method and have found that, asrequired, addition and blend of one or more a hydrogenated styrene-basedelastomer, hydrogenated petroleum resin and low-molecular weightpolyolefins to a blend of a methacrylic resin and other five resins iseffective. The hydrogenated styrene-based elastomer is preferably astyrene-based elastomer obtained by saturating the double bond of apolybutadiene block by hydrogenation. This elastomer is commerciallyavailable from Asahi Kasei Kogyo KK. under the trade name of Tuftec.When a slightly thick molded article is formed from a blend of amethacrylic resin and an ethylene•vinyl acetate copolymer resin orpolybutene-1, a white flow pattern which seems to be caused by lowcompatibility may be formed at the center of the molded article. Whenthis elastomer is added in an amount of 1 to 15 parts by weight based on100 parts by weight of the blend resin, this white flow pattern which isundesired from the viewpoint of appearance can be eliminated withoutimpairing excellent cuttability.

[0042] The hydrogenated petroleum resin is preferably partiallyhydrogenated or completely hydrogenated petroleum resin having asoftening point of 90 to 140° C. and an average molecular weight of 700to 950. It is commercially available from Idemitsu Petrochemical Co.,Ltd. under the trade name of IMARV. The hydrogenated petroleum resin iseffective in further improving cuttability and increasing flowability.For example, when 1 to 10 parts by weight of this hydrogenated petroleumresin is added to a blend of 100 parts by weight of a methacrylic resinand 80 parts by weight of a transparent polypropylene resin, cuttabilityand flowability are markedly improved.

[0043] The low-molecular weight polyolefin is also called “polyethylenewax” or “polypropylene wax”. They are commercially available from SanyoChemical Industries, Ltd. under the trade name of Sanwax and Viscol,respectively. The former has a softening point of 100 to 130° C. and anaverage molecular weight of 1,500 to 6,000 and the latter has asoftening point of 145 to 155° C. and an average molecular weight of3,000 to 15,000.

[0044] When 3 to 10 parts by weight of the former polyethylene wax isadded to 100 parts by weight of a blend of a methacrylic resin andlow-density polyethylene, cuttability and flowability are furtherimproved. When 1 to 10 parts by weight of the latter polypropylene waxis added to 100 parts by weight of a blend of a methacrylic resin and apolypropylene resin, not only cuttability but also transparency andflowability are improved.

[0045] To obtain the molded articles of the present invention, additivesused for the production and processing of plastics, such as a heatstabilizer, lubricant, antistatic agent and wetting agent are preferablyadded and used. An antistatic agent is particularly useful because itprevents cuttings from adhering to cutlery due to static electricity.

EXAMPLES

[0046] The following examples are provided for the purpose of furtherillustrating the present invention but are in no way to be taken aslimiting.

Examples 1 to 10 and Comparative Examples 1 to 10

[0047] Pellets of blend resins were manufactured by varying the blendingratio of a methacrylic resin to other resins as shown in Table 1 toblend them by means of a drum tumbler and melt kneading and extrudingthe resulting blends under the following extrusion and mix-kneadingconditions.

[0048] Extrusion and Mix-Kneading Conditions:

[0049] Used extruder: single-screw extruder (vented) having a screwdiameter of 40 mm

[0050] Screw design: L/D25, compression ratio of 3.5 (gradualcompression), cylinder temperature: 210 to 220° C. from the hopper sidetoward the die, revolution speed of screw: 80 rpm

[0051] After the thus obtained pellets were dried at 90° C. for 2 hoursas described above, molded articles called “multi-layered color plate”having a width of 5 cm and a length of 9 cm and consisting of a 1-mmthick layer, a 2 mm-thick layer and a 3 mm-thick layer were formed underthe following injection molding conditions.

[0052] Injection Molding Conditions:

[0053] Used molding machine: J40S having a clamping force of 40 tons ofNippon Steel Co., Ltd.

[0054] Cylinder temperature: 200 to 220° C. from the hopper side towardthe front end

[0055] Used mold: selecting only one of the above color plates

[0056] Molding cycle: 30 to 35 seconds

[0057] The evaluation for transparency and cuttability was carried outas follows, using the obtained molded color plates. That is, as fortransparency, commercially available red and blue color pencil leadswere placed on the back side of each plate, the color leads were seenthrough the plate, and how clearly the color leads could be seen wasjudged by comparing the obtained color plate with a color plate of amethacrylic resin having the highest transparency (trade name: Delpet60N) and a semitransparent color plate of a transparent polypropyleneresin (trade name: Novatec PP MG03B) which was a little hazy. Thetransparency of the former was ranked 10, that of the latter was ranked5, and the interval between them was divided into four grades. Thetransparency of each color plate of a blend resin was judged with nakedeyes and ranked. The transparency of each plate was expressed by anaverage value of rankings made by five people.

[0058] As for cuttability, the color plate and a commercially availablecolor pencil having a wooden casing (trade name: MITSUBISHI HARD 7700)were cut with a knife, and the cuttability of the color pencil wasranked 5. When the cuttability of the color plate was higher than thecolor pencil, the cuttability of the color plate was expressed by afigure larger than 5 and when it was lower than the color pencil, thecuttability was expressed by a figure smaller than 5. The cuttabilitywas expressed by an average value of rankings made by five people. Theresults are shown in Table 2. TABLE 1 amount of resin third componentand its Resin to (based on amount (based on 100 parts be blended 100parts by by weight of the with A weight of A) total of resins) (parts byweight) (parts by weight) C. Ex. 1 B 20 1 part of G and 1 part of J Ex.1 B 80 2 parts of G and 2 pars of J Ex. 2 B 200 3 parts of G and 3 parsof J C. Ex. 2 B 330 4 parts of G and 4 pars of J C. Ex. 3 C 2 1 part ofG Ex. 3 C 15 2 parts of G Ex. 4 C 70 3 parts of G C. Ex. 4 C 130 4 partsof G C. Ex. 5 D 2 1 part of G Ex. 5 D 15 2 parts of G Ex. 6 D 70 3 partsof G C. Ex. 6 D 130 3 parts of G C. Ex. 7 E 20 1 part of G and 1 part ofH Ex. 7 E 80 2 parts of G and 2 pars of H Ex. 8 E 200 3 parts of G and 3pars of H C. Ex. 8 E 330 4 parts of G and 4 pars of H C. Ex. 9 F 20 sameas above Ex. 9 F 80 same as above Ex. 10 F 200 same as above C. Ex. 10 F330 same as above

[0059] (notes)

[0060] A methacrylic resin: Delpet 60N of Asahi Chemical Industry Co.,Ltd.

[0061] B polypropylene resin: Novatec PP MG03B of Japan Polychem Corp.

[0062] C ethylene•vinyl acetate copolymer resin: Evaflex EV360 of DuPont-Mitsui Polychemicals Co., Ltd.

[0063] D polybutene-1: Tafmer P-0680J of Mitsui Chemicals, Inc.

[0064] E ionomer: Himilan 1652 of Du Pont-Mitsui Polychemicals Co., Ltd.

[0065] F low-density polyethylene resin: Suntec M6520 of Asahi ChemicalIndustry Co., Ltd.

[0066] G hydrogenated styrene-based elastomer: Tuftec H1052 of AsahiChemical Industry Co., Ltd.

[0067] H polyethylene wax: Sanwax LEL-800 of Sanyo Chemical Industries,Ltd.

[0068] I polypropylene wax: Viscol 330-P of Sanyo Chemical Industries,Ltd.

[0069] J hydrogenated petroleum resin: IMARV P-140 of IdemitsuPetrochemical Co., Ltd. TABLE 2 Experiment No. transparency cuttabilityacceptability C. Ex. 1 3 2 Not accepted Ex. 1 5 4 Accepted Ex. 2 4 5Accepted C. Ex. 2 2 3 Not accepted C. Ex. 3 8 3 Not accepted Ex. 3 8 5Accepted Ex. 4 8 6 Accepted C. Ex. 4 8 4 Not accepted: unusable becauseit is too soft C. Ex. 5 8 3 Not accepted Ex. 5 8 5 Accepted Ex. 6 8 6Accepted C. Ex. 6 8 4 Not accepted: unusable because it is too soft C.Ex. 7 2 3 Not accepted Ex. 7 5 4 Accepted Ex. 8 4 5 Accepted C. Ex. 8 32 Not accepted C. Ex. 9 3 2 Not accepted Ex. 9 4 5 Accepted Ex. 10 4 4Accepted C. Ex. 10 2 3 Not accepted

[0070] When the above results are seen, molded articles made from ablend of an ethylene•vinyl acetate copolymer resin and polybutene-1resin are excellent in terms of transparency. Meanwhile, it isunderstood that cuttability equivalent to that of pencils having awooden casing can be obtained for any type of resin by optimizing theblending ratio. It is also understood that when the components areblended in a ratio outside the ratio specified by the present invention,a molded article having both transparency and cuttability cannot beobtained. These results are for injection molded articles and that thesame results are obtained for extrusion molded articles is obvious fromExamples 13 and 14 below which show that pipe-like molded products shapehaving size approximately equal to pencil are extruded to be molded andthe extrusion molded articles are equivalent to injection moldedarticles in terms of appearance, transparency and cuttability.

Examples 11 and 12

[0071] Amounts shown below of the resins and additives were blendedtogether by a drum tumbler for 5 minutes.

[0072] Composition of Example 11:

[0073] 4.0 kg of transparent polypropylene resin (Novatec PP MG03B ofJapan Polychem Corp.)

[0074] 6.0 kg of methacrylic resin (Delpet 60N of Asahi ChemicalIndustry Co., Ltd.)

[0075] 0.3 kg of hydrogenated styrene-based elastomer (Tuf tec H1052 ofAsahi Chemical Industry Co., Ltd.)

[0076] 0.05 kg of zinc stearate

[0077] 0.03 kg of antistatic agent (Rikemal S-100 of Riken Vitamin Co.,Ltd.)

[0078] Composition of Example 12:

[0079] 3.0 kg of ethylene•vinyl acetate copolymer resin(Evaflex EV360 ofDu Pont-Mitsui Polychemicals Co., Ltd.)

[0080] 7.0 kg of methacrylic acid (same as above)

[0081] 0.3 kg of hydrogenated styrene-based elastomer (same as above)

[0082] 0.05 kg of zinc stearate

[0083] 0.03 kg of antistatic agent (same as above)

[0084] The obtained above two blends were dried at 90° C. for 3 hours,melt kneaded and extruded under the following conditions to obtainpellets of the blends.

[0085] Kneading and Extrusion Conditions:

[0086] Used extruder: single screw with a screw diameter of 30 mm, anL/D of 28 and a compression ratio of 2.8, fitted with a strand die atthe front end (die hole diameter of 3.5 mm) Temperature: C1; 200° C.,C2; 210° C., C3; 220° C., die; 220° C.

[0087] Revolution speed of screw: 70 rpm

[0088] These two pellets were dried at 90° C. for 3 hours and injectionmolded under the following conditions to obtain pipe-like moldedproducts having an outer diameter of 7 mm, an inner diameter of 4 mm anda length of 110 mm.

[0089] Injection molding conditions:

[0090] Used molding machine: J40S with a clamping force of 40 tons ofNippon Steel Co., Ltd.

[0091] Cylinder temperature: 200-220° C. from the hopper side toward thefront end

[0092] Used mold: one-cavity mold for pipe-like molded products, normalmold temperature

[0093] Molding cycle: 28 seconds

[0094] Each one end of the obtained two molded products were firmlysealed up with Sellotape, a red lipstick commercially available fromShiseido Co., Ltd. was molten by heating and poured into the hollowportions of the pipes. As for the thus obtained pencil type cosmeticproducts having a transparent casing, it was confirmed that thesesamples were apparently so-called skeleton products that the redlipstick material contained therein could be seen clearly through thetransparent casing. The product of Example 11 was excellent intransparency from the aspect that its interior could be clearly seen asthe casing material was nearly completely transparent, but it lookedrather cheap because the interior could be seen too well. On the otherhand, the product of Example 12 was semitransparent rather thantransparent but had a preferred appearance because it looked expensive.

[0095] As for cuttability, when they were cut with a commerciallyavailable cutter for cutting pencil type cosmetics, held with fingers,it was found that they were equivalent to existing similar productshaving a wooden casing and that cuttings were connected, thereby rarelycausing scattering of the cuttings.

[0096] Meanwhile, as this type of pipe-like molded products are oftenformed by extrusion molding, the following experiments were conducted toconfirm that the present invention would exhibit a satisfactory effecteven in this case.

Examples 13 and 14

[0097] Dry pellets of the same two blends as used in Examples 11 and 12were extrusion molded under the following conditions to obtain pipe-likemolded products having almost the same outer diameter and inner diameteras in Examples 11 and 12.

[0098] Extrusion Molding Conditions:

[0099] used molding machine: screw diameter; 30 mm, L/D; 25, compressionratio; 2.5

[0100] cylinder temperature; C1; 190° C., C2; 200° C., C3; 210° C. dieshape and temperature; ejection port having an outer diameter of 7.5 mmand an inner diameter of 4.5 mm, 205° C.

[0101] revolution speed of screw: 40 rpm

[0102] forming system: diameter control method

[0103] take-off speed: 7 m/min

[0104] The obtained pipe-like molded products were cut to a length of110 mm and a red lipstick material was filled in the hollow portions ofthe pipes as described above. The obtained products had completely thesame appearance and almost the same cuttability as the above injectionmolded products.

[0105] Effect of the Invention

[0106] Pencil type cosmetics and color pencils obtained from atransparent or semitransparent molded product having cuttabilityobtained by the present invention are products used in daily life, canmeet the demand of the times for skeleton products whose interior can beseen and have a great industrial added value.

1. A transparent or semitransparent resin composition comprising (A) 100parts by weight of a methacrylic resin and (B1) 3 to 100 parts by weightof at least one polymer selected from the group consisting of anethylene•vinyl acetate copolymer resin and polybutene-1.
 2. Atransparent or semitransparent resin composition comprising (A) 100parts by weight of a methacrylic resin and (B2) 30 to 300 parts byweight of at least one polymer selected from the group consisting of apolypropylene resin, an ionomer and a low-density polyethylene.
 3. Atransparent or semitransparent resin composition comprising (A) 100parts by weight of a methacrylic resin, (B1) 3 to 100 parts by weight ofat least one polymer selected from the group consisting of anethylene•vinyl acetate copolymer resin and polybutene-1 and (B2) 30 to300 parts by weight of at least one polymer selected from the groupconsisting of a polypropylene resin, an ionomer and a low-densitypolyethylene.
 4. The transparent or semitransparent resin composition ofany one of claims 1 to 3 which further comprises at least one polymerselected from the group consisting of a hydrogenated styrene-basedelastomer, a low-molecular weight polyolefin and a hydrogenatedpetroleum resin.
 5. A transparent or semitransparent molded articlewhich comprises the resin composition of any one of claims 1 to 4 andcan be easily cut with cutlery.
 6. The molded article of claim 5 whichis a pencil or pencil type cosmetic product.